Document verified SR505/mini PIR wiring on GPIO22 at 3.3V.

README/meta/pins note small module + 3.3V works; refresh firmware package. Co-authored-by: Cursor <cursoragent@cursor.com>
2026-10-23 15:05:15 +08:00
parent 6226f0dbc2
commit db3f7d5f95
8 changed files with 19 additions and 16 deletions
--- a/include/pins.h
+++ b/include/pins.h
@@ -10,7 +10,7 @@
 #define CYD_TOUCH_CLK  25
 #define CYD_TOUCH_CS   33

-// 人体红外感应模块 OUT → GPIO22（VCC→3.3V 或 5V 视模块，GND→GND）
+// 小型人体红外（SR505 / mini SR501）OUT → GPIO22；VCC→3.3V，GND→GND
 #define PIR_PIN 22

 #define SCREEN_WIDTH  240